[Redesign] Misc batch of UI buggypoos

Summary:
Minor layout updates to Ref T8099

• Timeline tweaks
• Use Lato headers in Document Obj Headers
• Minor Remarkup
• Add Audit Icons

(Unclear if Audit is "correct", ie Status vs. Commit Status) But added icons anyways if needed.

Test Plan: Review each of the updated elements

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T8099

Differential Revision: https://secure.phabricator.com/D13357